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Filters Date Types (for Date Range) Extensions Shapefile (1) Types Map Service (11) OGC WFS Layer (11) OGC WMS Layer (11) OGC WMS Service (10) Citation (1) Downloadable (1) Shapefile (1) Contacts U.S. Geological Survey - ScienceBase Water Resources Jennifer C Murphy Matthew P Miller Sydney S Foks More... Categories Data (11) Data Release - In Progress (1) Tag Types Theme (15) Place (15) USGS Scientific Topic Keyword (11) Harvest Set (13) Subject (1) Tag Schemes None (9) USGS Thesaurus (8) none (2) ISO 19115 Topic Category (8) Common geographic areas (3) U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D. C., NIST (1) Geographic Names Information System (GNIS) (2) More... View Results as: JSON ATOM CSV

Data to support Leveraging machine learning to automate regression model evaluations for large multi-site water-quality trend studies This data release contains one dataset and one model archive in support of the journal article, "Leveraging machine learning to automate regression model evaluations for large multi-site water-quality trend studies," by Jennifer C. Murphy and Jeffrey G. Chanat. The model archive contains scripts (run in R) to reproduce the four machine learning models (logistic regression, linear and quadratic discriminant analysis, and k-nearest neighbors) trained and tested as part of the journal article. The dataset contains the estimated probabilities for each of these models when applied to a training and test dataset. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware River Basin, USGS Science Data Catalog (SDC), United States of America, Water Quality, biota, All tags... k-nearest neighbors, linear discriminant analysis, logistic regression, quadratic discriminant analysis, Fewer tags Delaware River Basin Stream Salinity Machine Learning Model Simulations for Past and Future Drought This model archive contains the input data, model code, and model outputs for machine learning models that predict daily non-tidal stream salinity (specific conductance) for a network of 459 modeled stream segements across the Delaware River Basin (DRB). Results are provided for two time periods: the historical drought-of-record from 1965-10-02 to 1969-12-30, and that same drought evaluated in climatic conditions that are consistent with a LENS2 enseble climate projection from 2057-10-02 to 2061-12-30. Results are provided for a total of three Random Forest models, corresponding to three input attribute sets (dynamic attributes, dynamic and static attributes, and dynamic attributes and a minimum set of static attributes).... Categories: Data, Data Release - In Progress; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware (DE), Delaware River Basin, Environment, Machine Learning, Maryland (MD), All tags... Modeling, New Jersey (NJ), New York (NY), Pennsylvania (PA), Stream Salinity, United States (US), Water quality/Water chemistry, Fewer tags Geomorphometry for Streams and Floodplains in the Chesapeake and Delaware Watersheds Geomorphometry for Streams and Floodplains in the Chesapeake and Delaware Watersheds was generated as part of the project Quantifying Floodplain Ecological Processes and Ecosystem Services in the Delaware River Watershed funded through the William Penn Foundation's Delaware Watershed Research fund. This dataset contains geomorphometry for streams and floodplains in the Chesapeake and Delaware River watersheds. Geomorphometry is a quantitative representation of landscape surface form (e.g., channel width and depth) obtained from digital elevation models (DEMs). The dataset contains geomorphometry derived from running 3-m DEMs through the Floodplain and Channel Evaluation Tool (FACET) version 0.1.0. FACET generates... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware River Basin, Floodplain, Floodplain, Geomorphology, All tags... Geomorphology, Geospatial, Hydrography, Lidar, Mapping, Remote Sensing, River, Stream, Streambank, Water Resources, geospatial, lidar, mapping, remote sensing, streambank, Fewer tags Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015 This metadata record describes monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015. A statistical machine learning technique - random forest modeling (Liaw and Wiener, 2018; R Core Team, 2020) - was applied to estimate natural flows using about 150 potential predictor variables (Miller and others, 2018). Calibration data used for the random forest model are available from (Foks and others, 2020). Each model was run twice, first using all potential predictor variables, which represents a "full" model run, and a second time using the top 20 predictors from the original run, which... Categories: Data; Tags: Delaware, Delaware River Basin, Hydrology, National Hydrography Dataset Plus Version 2.0, New Jersey, All tags... New York, Pennsylvania, USGS Science Data Catalog (SDC), anthropogenic modification, baseflow, environmental impacts, geochemistry, geoscientificInformation, groundwater, hydrology, inlandWaters, natural flows, random forest modeling, random forests, river reaches, rivers/streams, streamflow, surface water hydrology, water resources, Fewer tags Metrics of Resilience in Water Management Institutions in the Upper Colorado and Delaware River Basins, United States 2022 The data in this data release are from an effort focused on understanding social vulnerability to water insecurity, resiliency demonstrated by institutions, and conflict or crisis around water resource management. This data release focuses on definitions and metrics of resilience in water management institutions. Water resource managers, at various scales, are tasked with making complex and time-sensitive decisions in the face of uncertainty, competing objectives, and difficult tradeoffs. To do this, they must incorporate data, tacit knowledge, cultural and organizational norms, and individual or institutional values in a way that maintains consistent and predictable operations under normal circumstances, while... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware River Basin, Institutions, Resilience, USGS Science Data Catalog (SDC), Upper Colorado River Basin, All tags... Water Resources, decision support methods, inlandWaters, social sciences, water resource management, Fewer tags Multisource surface-water-quality data and U.S. Geological Survey streamgage match for the Delaware River Basin Jointly managed by multiple states and the federal government, there are many ongoing efforts to characterize and understand water quality in the Delaware River Basin (DRB). Many State, Federal and non-profit organizations have collected surface-water-quality samples across the DRB for decades and many of these data are available through the National Water Quality Monitoring Council's Water Quality Portal (WQP). For this data release, WQP data in the DRB were harmonized, meaning that they were processed to create a clean and readily usable dataset. The harmonization process included the synthesis of parameter names and fractions, the condensation of remarks and other data qualifiers, the resolution of duplicate... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware, Delaware Basin, Delaware River, Delaware River Basin, Maryland, All tags... National Water Quality Program, New Jersey, New York, Pennsylvania, USGS Science Data Catalog (SDC), Upper Delaware River, Delaware River Basin, Upper Delaware Scenic and Recreational River, Water Quality, Water Quality, Water Quality Water Analysis, Water Resources, Water-Quality Parameters, Fewer tags Daily-timestep and monthly-timestep estimates of baseflow at 49 reference stream gages located within 25 miles of the Delaware River basin watershed boundary for the years 1950 through 2015 This USGS data release contains daily-timestep and monthly-timestep estimates of baseflow at 49 reference stream gages located within 25 miles of the Delaware River basin watershed boundary. Estimates are provided for the available period of record of streamflow data at each site between 1950 and 2015. A two-parameter recursive digital filter was used to estimate baseflow at the selected stream gaging stations using U.S. Geological Survey Groundwater Toolbox (Barlow and others, 2017; Eckhardt, 2005). References cited: Barlow, P.M., Cunningham, W.L., Zhai, T., and Gray, M., 2017, U.S. Geological Survey Groundwater Toolbox version 1.3.1, a graphical and mapping interface for analysis of hydrologic data: U.S. Geological... Tags: Delaware, Delaware River basin, Hydrology, New Jersey, New York, All tags... Pennsylvania, USGS Science Data Catalog (SDC), Water Quality, Water Resources, baseflow, estuary, hydrology, river reaches, streamflow, water resources, watershed, Fewer tags Water-quality trends for rivers and streams in the Delaware River Basin using Weighted Regressions on Time, Discharge, and Season (WRTDS) models, Seasonal Kendall Trend (SKT) tests, and multisource data, Water Year 1978-2018 This data release provides water-quality trends for rivers and streams in the Delaware River Basin determined using the Weighted Regressions on Time, Discharge, and Season (WRTDS) model and the Seasonal Kendall Trend (SKT) test. Sixteen water-quality parameters were assessed, including nutrients (ammonia, nitrate, filtered orthophosphate, total nitrogen, total phosphorus, and unfiltered orthophosphate), major ions (calcium, chloride, magnesium, potassium, sodium, and sulfate), salinity indicators (total dissolved solids and specific conductance), and sediment (total suspended solids and suspended sediment concentration). The child items include the input and output data used in the modeling and testing of water-quality... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware, Delaware Basin, Delaware River, Delaware River Basin, Major ions, All tags... Maryland, New Jersey, New York, Pennsylvania, Seasonal Kendall trend test (SKT), USGS Science Data Catalog (SDC), Water Quality, Water Quality Parameters, Water-quality trends, Weighted regressions on time, discharge and season (WRTDS), environment, nutrient content (water), salinity, suspended material (water), water quality, water resources, Fewer tags Urban Waters Federal Partnership: Novel bacteria monitoring technology in support of recreational water quality monitoring in the Lower Delaware River The United States Geological Survey’s (USGS) New Jersey Water Science Center, in coordination with the Delaware River Basin Commission (DRBC) deployed a novel bacterial water-quality monitor, the Fluidion Alert V2 (Fluidion), in the Delaware River at Pyne Poynt Park in Camden County, New Jersey. Following United States Environmental Protection Agency (EPA) recreational water quality criteria, DRBC has been evaluating fecal indicator bacteria (FIB) abundance along Lower Delaware River at Pyne Poynt Park in support of primary use recreation (DRBC, 2022). The EPA recreation criteria establish acceptable levels of FIB abundance for primary contact recreation, such as swimming, and secondary contact recreation, such... Categories: Data; Tags: Camden, Delaware River, Delaware River Basin, Environmental Health, FIB monitoring, All tags... Lower Delaware Estuary, Lower Delaware River, Lower Delaware River Basin, New Jersey, Pyne Poynt Park, USGS Science Data Catalog (SDC), Water Resources, bacteria, bacteria monitoring, bacterial monitoring study, environment, fecal indicator bacteria, geoscientificInformation, health, inlandWaters, novel technology, society, water quality, water quality criteria, water quality monitoring, Fewer tags Airborne electromagnetic and magnetic survey of Delaware Bay and surrounding regions of New Jersey and Delaware, 2022 Airborne electromagnetic (AEM) and magnetic survey data were collected during July and August 2022 over a distance of 3,588.5 line kilometers covering Delaware Bay and surrounding regipons in New Jersey and Delaware. Data were collected as part of the USGS Delaware River Basin Next Generation Water Observing Systems (NGWOS) project to improve understanding of groundwater salinity distributions near Delaware Bay. The survey was primarily funded by the USGS, with partial support through collaboration with the University of Delaware to extend data collection to parts of Rehoboth Bay and Indian River Bay. Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Hydrology"], "Water Quality", Cape May County, Cumberland County, Delaware, All tags... Delaware Bay, Delaware River Basin, GGGSC, Geology, Geophysics, and Geochemistry Science Center, IWS, Integrated Water Science, Kent County, Maryland-Delaware-D.C. Water Science Center, NGWOS, New Castle County, New Jersey, New Jersey Water Science Center, Next Generation Water Observing System, Salem County, Sussex County, USGS Science Data Catalog (SDC), ["Geophysics", aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, salinity, stratigraphic thickness, water resources, Fewer tags Surrogate regression models for computation of time series suspended-sediment, Delaware River Basin NGWOS, 2019 through 2022 The U.S. Geological Survey (USGS), as part of the Next Generation Water Observing System (NGWOS) has collected discrete stream samples for analysis of suspended-sediment concentrations at eight real-time streamflow and water-quality monitoring (turbidity and suspended sediment) stations located in Pennsylvania, New Jersey, and New York in the Delaware River Basin. Data were collected from 2019-2022 at these stations for the application of predicting suspended-sediment concentrations using real-time continuous turbidity, suspended sediment from an uncalibrated sensor, and streamflow data. Regression equations were developed by relating discrete-sample suspended sediment and continuous turbidity, suspended sediment... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware River Basin, New Jersey, New York, Pennsylvania, Surface Water, All tags... Suspended Sediment, USGS Science Data Catalog (SDC), regression analysis, surface water water quality, suspended material (water), water quality, Fewer tags Site visit cross section surveys and multispectral image data from gaging stations throughout the Willamette and Delaware River Basins from 2022 and code for Bathymetric Mapping using Gage Records and Image Databases (BaMGRID) This data release includes cross section survey data collected during site visits to USGS gaging stations located throughout the Willamette and Delaware River Basins and multispectral images of these locations acquired as close in time as possible to the date of each site visit. In addition, MATLAB source code developed for the Bathymetric Mapping using Gage Records and Image Databases (BaMGRID) framework is also provided. The site visit data were obtained from the Aquarius Time Series database, part of the USGS National Water Information System (NWIS), using the Publish Application Programming Interface (API). More specifically, a custom MATLAB function was used to query the FieldVisitDataByLocationServiceRequest... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Bathymetry, Cross sections, Delaware River Basin, Depth, All tags... Gaging stations, Geomorphology, Hydrology, New Jersey (NJ), New York (NY), Oregon (OR), Pennsylvania (PA), Remote Sensing, Remote sensing, River, Site visit, USGS Science Data Catalog (SDC), Water Resources, Willamette River Basin, Fewer tags Long-term database of historical, current, and future land cover for the Delaware River Basin (1680 through 2100) The USGS’s FORE-SCE model was used to produce a long-term landscape dataset for the Delaware River Basin (DRB). Using historical landscape reconstruction and scenario-based future projections, the data provided land-use and land-cover (LULC) data for the DRB from year 1680 through 2100, with future projections from 2020-2100 modeled for 7 different socioeconomic-based scenarios, and 3 climate realizations for each socioeconomic scenario (21 scenario combinations in total). The projections are characterized by 1) high spatial resolution (30-meter cells), 2) high thematic resolution (20 land use and land cover classes), 3) broad spatial extent (covering the entirety of the Delaware River basin, corresponding to USGS... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware River, Delaware River Basin, Delaware River Basin, FORE-SCE, Future, All tags... Historical, Land Cover, Land Use, Model, Modelling, Projection, Scenario, USGS, USGS Science Data Catalog (SDC), United States, United States, Fewer tags A deep learning model and associated data to support understanding and simulation of salinity dynamics in Delaware Bay Salinity dynamics in the Delaware Bay estuary are a critical water quality concern as elevated salinity can damage infrastructure and threaten drinking water supplies. Current state-of-the-art modeling approaches use hydrodynamic models, which can produce accurate results but are limited by significant computational costs. We developed a machine learning (ML) model to predict the 250 mg/L Cl- isochlor, also known as the salt front, using daily river discharge, meteorological drivers, and tidal water level data. We use the ML model to predict the location of the salt front, measured in river miles (RM) along the Delaware River, during the period 2001-2020, and we compare the ML model results to results from the hydrodynamic... Categories: Data; Tags: DE, Delaware, Delaware River Basin, Hydrology, MD, All tags... Maryland, NJ, NY, New Jersey, New York, PA, Pennsylvania, US, USGS Science Data Catalog (SDC), United States, coastal science, deep learning, environment, estuary, explainable AI, hybrid modeling, information theory, inlandWaters, machine learning, modeling, salinity, salt front, water, water resources, Fewer tags Data supporting a spatiotemporal trend analysis of specific conductivity, streamflow, and landscape attributes of selected sub-basins within the Delaware River watershed, 1980 to 2018 This data release makes available three data tables supporting a spatiotemporal analysis of riverine conductivity and streamflow trends within the Delaware River Basin. The listed datasets include baseflow and total flow time series for selected gaged basins, watershed attributes, water quality information and trend analysis results. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Baseflow, Deicing, Delaware River, Delaware River Basin, Groundwater, All tags... Legacy, Road salt, Specific conductivity, Stream flow, USGS Science Data Catalog (SDC), climatologyMeteorologyAtmosphere, environment, none, transportation, Fewer tags